scholarly journals Use of an endoscopic flexible grasper as a traction tool for excision of polyps: preclinical trial

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Shinya Urakawa ◽  
Teijiro Hirashita ◽  
Yuka Hirashita ◽  
Lea Lowenfeld ◽  
Krishna C. Gurram ◽  
...  
Keyword(s):  
Endoscopic Submucosal Dissection ◽  
3D Model ◽  
Posterior Wall ◽  
Ascending Colon ◽  
Procedure Time ◽  
Right Colon ◽  
Preclinical Trial ◽  
Descending Colon ◽  
The Right ◽  
Surgical Platform

AbstractEndoscopic submucosal dissection (ESD) is challenging in the right colon. Traction devices can make it technically easier. In this study, we evaluated a flexible grasper with articulating tip and elbow-like bending (IgE) through a double-balloon surgical platform (DESP), compared with an earlier generation grasper without elbow-like bending (Ig). The reach of Ig/IgE was investigated at eight locations using a synthetic colon within a 3D model. Using a fresh porcine colorectum, 4 cm pseudo-polyps were created at the posterior wall of the ascending colon. Fifty-four ESD procedures were performed using three techniques: standard ESD (STD), ESD using Ig (DESP + Ig), and ESD using IgE (DESP + IgE). IgE was able to reach the full circumference at all the locations, whereas the medial walls proximal to the descending colon were out of Ig’s reach. Compared with the STD, both DESP + Ig and DESP + IgE showed significantly shorter procedure time (STD vs. DESP + Ig vs. DESP + IgE = median 48.9 min vs. 38.6 vs. 29.9) and fewer injuries (1.5 vs. 0 vs. 0). Moreover, the DESP + IgE had a shorter procedure time than the DESP + Ig (p = 0.0025). The IgE with DESP increased instrument reach compared to Ig, and likely represented a traction tool for excision of large pseudo-polyps in the right colon.

scholarly journals Endoscopic Submucosal Dissection of Pseudo-polyps in the Right Colon Using a Flexible Grasper With Articulating Distal Tip and Elbow-Like Bending

2021 ◽  
Author(s):  
Shinya Urakawa ◽  
Teijiro Hirashita ◽  
Yuka Hirashita ◽  
Lea Lowenfeld ◽  
Krishna Gurram ◽  
...  
Keyword(s):  
Endoscopic Submucosal Dissection ◽  
3D Model ◽  
Posterior Wall ◽  
Ascending Colon ◽  
Procedure Time ◽  
Right Colon ◽  
Submucosal Dissection ◽  
Descending Colon ◽  
The Right ◽  
Surgical Platform

Abstract Endoscopic submucosal dissection (ESD) is challenging in the right colon. Traction devices can make it technically easier. In this study, we evaluated a flexible grasper with articulating tip and elbow-like bending (IgE) through a double-balloon surgical platform (DESP), compared with an earlier generation grasper without elbow-like bending (Ig). The reach of Ig/IgE was investigated at eight locations using a synthetic colon within a 3D model. Using a fresh porcine colorectum, 4 cm pseudo-polyps were created at the posterior wall of the ascending colon. Fifty-four ESD procedures were performed using three techniques: standard ESD (STD), ESD using Ig (DESP+Ig), and ESD using IgE (DESP+IgE). IgE was able to reach the full circumference at all the locations, whereas the medial walls proximal to the descending colon were out of Ig’s reach. Compared with the STD, both DESP+Ig and DESP+IgE showed significantly shorter procedure time (STD vs. DESP+Ig vs. DESP+IgE = median 48.9 min vs. 38.6 vs. 29.9) and fewer injuries (1.5 vs. 0 vs. 0). Moreover, the DESP+IgE had a shorter procedure time than the DESP+Ig (p=0.0025). The IgE with DESP increased instrument reach compared to Ig, and likely represented a traction tool for excision of large pseudo-polyps in the right colon.

scholarly journals Long splenic flexure carcinoma requiring laparoscopic extended left hemicolectomy with CME and transverse-rectal anastomosis: technique for a modified partial Deloyers in 5 steps to achieve enough reach and preserving middle colic vessels

2021 ◽  
Author(s):  
Salomone Di Saverio ◽  
Kostantinos Stasinos ◽  
Weronyka Stupalkowska ◽  
Umberto Bracale ◽  
Pierpaolo Sileri ◽  
...  
Keyword(s):  
Splenic Flexure ◽  
Primary Anastomosis ◽  
Colorectal Anastomosis ◽  
Ascending Colon ◽  
Right Colon ◽  
Left Hemicolectomy ◽  
Tension Free ◽  
Descending Colon ◽  
Deloyers Procedure ◽  
The Right

Abstract Introduction This How-I-Do-It article presents a modified Deloyers procedure by mean of the case of a 67-year-old female with adenocarcinoma extending for a long segment and involving the splenic flexure and proximal descending colon who underwent a laparoscopic left extended hemicolectomy (LELC) with derotation of the right colon and primary colorectal anastomosis. Background While laparoscopic extended right colectomy is a well-established procedure, LELC is rarely used (mainly for distal transverse or proximal descending colon carcinomas extending to the area of the splenic flexure). LELC presents several technical challenges which are demonstrated in this How-I-Do-It article. Technique and methods Firstly, the steps needed to mobilize the left colon and procure a safe approach to the splenic flexure are described, especially when a tumor is closely related to it. This is achieved by mobilization and resection of the descending colon, while maintaining a complete mesocolic excision to the level of the duodenojejunal ligament for the inferior mesenteric vein and flush to the aorta for the inferior mesenteric artery. Subsequently, we depict the adjuvant steps required to enable a primary anastomosis by trying to mobilize the transverse colon and release as much of the mesocolic attachments at the splenic flexure area. Finally, we present the rare instance when a laparoscopic derotation of the ascending colon is required to provide a tension-free anastomosis. The resection is completed by delivery of the fully derotated ascending colon and hepatic flexure through a suprapubic mini-Pfannenstiel incision. The primary colorectal anastomosis is subsequently fashioned in a tension-free way and provides for a quick postoperative recovery of the patient. Results This modified Deloyers procedure preserves the middle colic since the fully mobilized mesocolon allows for a tension-free anastomosis while maintaining better blood supply to the mobilized stump. Also, by eliminating the need for a mesenteric window and the transposition of the caecum, we allow the small bowel to rest over the anastomosis and the mobilized transverse colon and reduce the possibility of an internal herniation of the small bowel into the mesentery. Conclusions Laparoscopic derotation of the right colon and a partial, modified Deloyers procedure preserving the middle colic vessels are feasible techniques in experienced hands to provide primary anastomosis after LELC with improved functional outcome. Nevertheless, it is important to consider anatomical aspects of the left hemicolectomy along with oncological considerations, to provide both a safe oncological resection along with good postoperative bowel function.

scholarly journals Obstructed descending colon mass pretended with Bockdalek hernia: a case report

2021 ◽  
Author(s):  
mohammad eslamian ◽  
Mohsen kolahdouzan
Keyword(s):  
Diaphragmatic Hernia ◽  
Abdominal Pressure ◽  
Right Colon ◽  
Abdominal Ct ◽  
Midline Laparotomy ◽  
Abdominal Ct Scan ◽  
Descending Colon ◽  
The Right ◽  
Thoracic And Abdominal ◽  
Diaphragmatic Hernias

Abstract Introduction: Adult Bochdalek hernia is one of the right-sided diaphragmatic hernias that less than 30 cases reported until now.Case: I herein report a 64-year-old female patient who had dyspnea, abdominal pain, and nausea. Primary imaging (thoracic and abdominal CT scan) showed a right-sided diaphragmatic hernia that was contained the liver and right colon. The patient underwent right posterior thoracotomy at first, so the 5*5 cm diaphragmatic defect was repaired. Due to peritonitis that happened after two days, a midline laparotomy was performed. Finally, it was cleared that the main problem was the obstructed and perforated descending colon mass that was presented with Bockdalek hernia. Unfortunately, she died.Conclusion It is important to determine the reason for the presentation of the symptomatic diaphragmatic hernia in adult patients. It should be considered that an increase of intra-abdominal pressure like the presence of obstructed colon mass can cause it.

scholarly journals Effectiveness of S-O Clip-Assisted Colorectal Endoscopic Submucosal Dissection

2021 ◽  
Vol 11 (1) ◽  
pp. 141
Author(s):  
Haruka Fujinami ◽  
Akira Teramoto ◽  
Saeko Takahashi ◽  
Takayuki Ando ◽  
Shinya Kajiura ◽  
...  
Keyword(s):  
Endoscopic Submucosal Dissection ◽  
En Bloc Resection ◽  
Bloc Resection ◽  
Resection Rate ◽  
Right Colon ◽  
En Bloc ◽  
Submucosal Dissection ◽  
Colorectal Endoscopic Submucosal Dissection ◽  
The Right ◽  
Surgery Duration

This study aimed to assess the utility of the S-O clip during colorectal endoscopic submucosal dissection (ESD). We conducted a retrospective study on 185 patients who underwent colorectal ESD from January 2015 to January 2020. The patients were divided into two groups: before and after the introduction of the S-O clip. Forty-two patients underwent conventional ESD (CO group) and 29 patients underwent ESD using the S-O clip (SO group). We compared the surgery duration, dissection speed, en bloc resection rate, and complication rate between both groups. Compared with the CO group, the SO group had a significantly shorter surgery duration (70.7 ± 37.9 min vs. 51.2 ± 18.6 min; p = 0.017), a significantly higher dissection speed (15.1 ± 9.0 min vs. 26.3 ± 13.8 min; p < 0.001), a significantly higher en bloc resection rate (80.9% vs. 98.8%; p ≤ 0.001), and a significantly lower perforation rate (4.3% vs. 1.3%). In the right colon, the surgery duration was significantly shorter and the dissection speed was significantly higher in the SO group than in the CO group. Moreover, the rate of en bloc resection improved significantly in the right colon. S-O clip-assisted ESD reduces the procedure time and improves the treatment effects, especially in the right colon.

scholarly journals Segmental colonic length and mobility

2015 ◽  
Vol 97 (6) ◽  
pp. 439-444 ◽  
Author(s):  
M Phillips ◽  
A Patel ◽  
P Meredith ◽  
O Will ◽  
C Brassett
Keyword(s):  
Significant Proportion ◽  
Human Colon ◽  
Ascending Colon ◽  
Rectosigmoid Colon ◽  
Right Colon ◽  
Transverse Mesocolon ◽  
Anatomical Teaching ◽  
The Mean ◽  
The Right ◽  
Sigmoid Mesocolon

Introduction Locoregional variation in the human colon is important in surgical practice; the length and mobility of different colonic regions impacts on laparoscopic and endoscopic colorectal procedures. The aim of this study was to refine anatomical understanding of the colon in terms of segmental length and mobility. Methods The colons of 35 cadavers were examined to determine lengths of caecum as well as ascending, transverse, descending and rectosigmoid colon, and to characterise colonic mobility at each location in terms of the mesenteric attachments. The presence of Jackson’s membrane (a congenital peritoneal band of the right colon) was also documented. Results The mean total colonic length was 131.2cm (standard deviation [SD]: 13.4cm). There was no correlation with height, age or sex; the best predictor of total colonic length was the length of the rectosigmoid segment. The mean height of the transverse mesocolon was 7.4cm (SD: 3.6cm) and that of the sigmoid mesocolon was 6.3cm (SD: 2.6cm). Two-thirds of the subjects had a mobile portion of the ascending colon and nearly one-third had a mobile descending colon. A mobile ascending colon was significantly more common in females. Jackson’s membrane was present in 66% of the subjects. Conclusions This cadaveric study suggests that rectosigmoid length accounts for most of the variability in total colonic length. The significant proportion of colons with mobility of the ascending and descending segments prompts revision of the traditional anatomical teaching of these segments as fixed and retroperitoneal. Mobility of the ascending colon may account for the anecdotal finding that colonoscopy is more challenging in female patients. Jackson’s membrane was identified in most colons.

scholarly journals Fecal Scrotal Abscess Secondary to Spontaneous Retroperitoneal Perforation of Ascending Colon

2021 ◽  
Vol 2021 ◽  
pp. 1-6
Author(s):  
Akshay Bahadur ◽  
Nirmala Singh ◽  
Mayank Kashmira ◽  
Ashish Shukla ◽  
Vikas Gupta ◽  
...  
Keyword(s):  
Conservative Treatment ◽  
Iliac Fossa ◽  
Abdominal Distension ◽  
Posterior Wall ◽  
Retroperitoneal Abscess ◽  
Bowel Loop ◽  
Ascending Colon ◽  
Retroperitoneal Perforation ◽  
The Right ◽  
Spread Of Infection

Introduction. Fecal abscess or enterocutaneous fistulas of the scrotum are rare and are invariably the result of incarcerated bowel loop in inguinal hernia. Spontaneous perforation of the colon (SPC) having no definite cause is also rare. Much rarer is posterior colonic perforations causing an extensively large retroperitoneal abscess. Similarly, spread of retroperitoneal abscess to the thigh or scrotum has rarely been reported. We report a case of spontaneous posterior perforation of ascending colon resulting in large retroperitoneal abscess eventually causing scrotal abscess, which resolved on conservative treatment and drainage of the scrotal fecal abscess. Case Presentation. A 20-year-old male presented with gradually increasing noncolicky pain right side abdomen with nonprojectile vomiting, obstipation, and progressive abdominal distension. Clinically, the abdomen was tender with guarding over the right side with signs of inflammation on the right side back with no associated hernia. On conservative treatment, he was gradually improved but developed right side scrotal abscess a week later. CT abdomen showed a large retroperitoneal collection having multiple internal air lucencies, displacing ascending colon and caecum medically with discontinuity in the posterior wall of ascending colon. The large retroperitoneal collection was extending from right pararenal and posterior perihepatic soft tissue planes to the right iliac fossa and thigh. On drainage of the scrotal abscess, about 350 ml of fecal contents was evacuated. The patient gradually recovered and was discharged on conservative treatment with an uneventful 4-year follow-up. Conclusion. Diagnosis of retroperitoneal perforation of the colon is often delayed due to the absence of peritoneal irritation. An extensively large retroperitoneal abscess may spread the infection to the scrotum and thigh due to extreme pressure, possibly by dissecting away the transversalis fascia through a deep ring along the side of the spermatic cord. Timely performed CT/MRI can avoid delay in the diagnosis of retroperitoneal abscess and further spread of infection.

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